For any disordered medium (such as a sugar cube, for example), special light waves can be found which are practically not changed by the medium, only attenuated. These 'scattering invariant light modes' could play a major role in new imaging technologies.
from Latest Science News -- ScienceDaily https://www.sciencedaily.com/releases/2021/04/210412114826.htm
from Latest Science News -- ScienceDaily https://www.sciencedaily.com/releases/2021/04/210412114826.htm
The indestructible light beam
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April 12, 2021
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